Preparation A. ADOLESCENTS The change of behaviour we expect to bring about has to do with consciousness and inwardness of values. In other words, through experiential methods we expect youngsters to obtain information, dexterities (sentimental, cognitive and behavioural) and the particular knowledge which will help them understand the world, themselves and their real needs better. B. PARENTS GROUPS Parents are called upon to become their children�s life-trainers on how to organise their lives in a functional and creative way and provide them with the emotion and support they need. However, socialising does not have to do with two persons. It needs groups and human space. In this group, parents are substantially supported on their parental role, the role of the family and their role as their children�s life-trainers. A series of sessions with experiential methods is followed, so that parents can understand that �I am teaching my child with the way that I live, not with the things I say, and I can really help it when my life has a meaning�. C. EDUCATORS GROUPS Creating a positive climate in the school community strengthens the resistance to the factors that lead to the use or overuse of legal and illegal substances. Such a climate encourages those conditions that promote the principles and the values of prevention. Through experiential seminars, educators are trained and supported concerning their pedagogical and socialising role at school. D. MIXED GROUPS - MIXED THEATRICAL GROUP Through the training and coordination of these parents�, educators� and adolescents� groups, a mixed theatrical group of script writing was created in Syros in 2003-2004, with trained parents, educators and adolescents, who wrote through group processes the first theatrical play called �The Slap�. 3 The object of the coexistence in the mixed group was to examine the difficulties in the communication among them and possibly to outline those changes that would improve their relations. All the above was stamped in a theatrical play. After an incident given to the group (a slap from a teacher to a pupil), the members of the mixed group started negotiating it according to each one�s role. The process was based on turning to account the small group, whose members would be able to express feelings, ideas and thoughts. The mixed theatrical group, after having submitted a candidature folder for the European Juvenile Theatre Festival, managed to be the only Greek entry in a meeting of 300 youngsters from 15 countries. Training The mixes group was trained in an experiential way on how to interact through discussion and social theatre. Based on the social theatre approach, we tried to receive messages from the society, which �through group processesfinally compose a play-suggestion presented to the society again. Social theatre is a social action. Using the theatrical action as a tool and the collective living of facts as a pedagogical mechanism, it aims at spherical mental, sentimental and body cultivation, development, maturity of the group�s members and through their interaction at human communication. The presentation of this work to the community acts sensitises the audience, who may recognise their own experiences, leading them to an inner discussion and change of certain attitudes. It works as a space where the community gathers, where citizens express their experience and discuss about their dreams concerning the human and the society, finding again the roots that connect it with ancient drama and its function in the ancient city.(POLIS)